Project architecture

Full infrastructure cycle

Calliseom controls the critical infrastructure layers required to deliver computing capacity — power, reliability, cooling, network, GPU compute and cloud, under a single 24/7 NOC.

Isometric view of the Calliseom infrastructure stack — power, land, compute
Power

26 MW across two independent feeds

Reliability

Tier IV as the target architecture

Cooling

Industrial engineering loop

Network

Scaling to 2 Tbit/s+

GPU Compute

AI, ML and HPC workloads

Cloud

GPU and AI services for clients

NOC 24/7

A single control center for all layers

Underground cross-section of the Calliseom campus
Underground by design

Built deep. Built to outperform.

Four floors
16–20 m depth
Groundwater buffer
52–60 m below groundwater level
Physical security
Maximum protection by design
Thermal stability
Consistent temperature year-round
Seismic performance
Engineered for maximum earthquake resilience
Tier IV target architecture

Fault tolerant by design

Maximum availability — 99.995% and above. 2N redundancy at all levels, from input to distribution in the halls.

Independent power paths

Two fully independent inputs, distribution for A and B

No single point of failure

Mission-critical systems with 2N redundancy

Redundant cooling

Independent cooling circuits, chillers and pumping stations

High availability

Uninterrupted operation of engineering systems and IT workloads

Power

26+ MW dual power architecture

Two fully independent power channels at 13+ MW each — separate inputs, substations and equipment. Any component can be taken offline without impacting the service. Hot reserve: 2N at all levels.

13+ MW
Channel A
13+ MW
Channel B
Cooling

Industrial engineering loop

Highly efficient chillers with 2N redundancy, precise temperature and humidity control in each hall, redundant cooling circuits and pumping stations — 24/7 with no single point of failure.

~22°C
Chilled water supply
~45%
Relative humidity
Network

Scaling up to 2 Tbit/s+

High-performance network infrastructure for GPU and cloud workloads. Starting throughput of 400 Gbit/s with step-by-step scaling to 2 Tbit/s and beyond, over multiple independent transit routes.

400 Gbit/s 800 Gbit/s 1.6 Tbit/s 2 Tbit/s+

Sovereign routing over the Trans-Caspian Corridor — direct, low-latency connections to the USA, Canada, Europe and Israel with no transit through high-risk jurisdictions. Your data stays within trusted legal and regulatory boundaries.

International connectivity map

Infrastructure is the foundation. Services are the product.